E6300 code interpretation?

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
I'm buying my first Core 2 CPU (I know, I'm late to the party) and I found a guy locally with a E6300 marked L631A931.

How do I interpret this and (more importantly) is it something I should be interested in? It's a used pull I found locally for what seems like a decent price ($135).

Viper GTS